에이프릴 피아노
type: MusicGroup
popularity: 13
followers: 37
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x99dab391ad8686f3d02f5aaaf9d5a402cc2b54a3276b111ef7be99acaadc75ad
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953795
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953795
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e1115998-3356-4a26-82e6-91467949a29a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e1115998-3356-4a26-82e6-91467949a29a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e1115998-3356-4a26-82e6-91467949a29a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:44:27Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x99dab391ad8686f3d02f5aaaf9d5a402cc2b54a3276b111ef7be99acaadc75ad","name":"에이프릴 피아노","registered_at":"2026-06-15T04:11:12Z","symbol":"NIM0677983","token_address":"0xcce9ac99dbdcf1243406cdade05b5284ea3f5541","type":"artist","uuid":"e1115998-3356-4a26-82e6-91467949a29a"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dab391ad8686f3d02f5aaaf9d5a402cc2b54a3276b111ef7be99acaadc75ad. Chain 2 (Bitcoin): anchored in block 953795 (2026-06-15T13:44:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1115998-3356-4a26-82e6-91467949a29a.json and https://artists.proofprofile.net/proofs/artist/e1115998-3356-4a26-82e6-91467949a29a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:44:27Z
  text: {"copyright_id":"0x99dab391ad8686f3d02f5aaaf9d5a402cc2b54a3276b111ef7be99acaadc75ad","name":"에이프릴 피아노","registered_at":"2026-06-15T04:11:12Z","symbol":"NIM0677983","token_address":"0xcce9ac99dbdcf1243406cdade05b5284ea3f5541","type":"artist","uuid":"e1115998-3356-4a26-82e6-91467949a29a"}
album: Best Beloved Cinema Piano (Soundtrack)
  type: MusicAlbum
  date published: 2019-10-21
album: The Most Beautiful Musical Piano (Soundtrack)
  type: MusicAlbum
  date published: 2019-10-29
album: Best Cinema Piano Collection
  type: MusicAlbum
  date published: 2019-11-06
  track: 13 Jours En France (From "하얀 연인들")
    type: MusicRecording
    duration: PT1M42S
    duration ms: 102666
    explicit: false
    by artist: 에이프릴 피아노
    in album: Best Cinema Piano Collection
      type: MusicAlbum
      date published: 2019-11-06
    isrc code: KRRAR2322348
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T15:51:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6cebcf4b2bba77153d6e33f968c69a224c16cdd41b22fad71238d25bce11ddba
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959031
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959031
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRRAR2322348
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T16:15:11Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cebcf4b2bba77153d6e33f968c69a224c16cdd41b22fad71238d25bce11ddba. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRRAR2322348.
      date published: 2026-07-21T16:15:11Z
    audio: 13 Jours En France (From "하얀 연인들")
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 180.392
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.426
      additional property: Energy
        type: PropertyValue
        value: 0.224
      additional property: Speechiness
        type: PropertyValue
        value: 0.062
      additional property: Acousticness
        type: PropertyValue
        value: 0.992
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.846
      additional property: Liveness
        type: PropertyValue
        value: 0.084
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.287
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.13
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Best Ghibli Themes On Piano
  type: MusicAlbum
  date published: 2019-11-13
album: CINEMA PIANO for Healing
  type: MusicAlbum
  date published: 2020-04-22
album: 조용한 밤에 듣는 마음치유 뮤지컬 명곡 피아노
  type: MusicAlbum
  date published: 2020-05-13
album: 조용한 밤에 듣는 마음치유 애니메이션 명곡 피아노
  type: MusicAlbum
  date published: 2020-05-13
album: 비 오는 날 듣는 감동의 애니메이션 테마 연주곡
  type: MusicAlbum
  date published: 2020-07-15
album: 마음이 쉬어가는 피아노의 숲 Animation (Soundtrack)
  type: MusicAlbum
  date published: 2020-08-26
album: Sleeping Piano
  type: MusicAlbum
  date published: 2020-09-09
album: 피아노로 듣는 세미클래식 명곡선
  type: MusicAlbum
  date published: 2020-09-23
album: 한국의 사계와 듣는 힐링 피아노
  type: MusicAlbum
  date published: 2020-12-09
album: 상쾌한 아침에 듣는 빗소리 피아노
  type: MusicAlbum
  date published: 2021-02-04
album: 집중력을 높이는 물소리 피아노
  type: MusicAlbum
  date published: 2021-02-04
album: 마음치유 빗소리 피아노
  type: MusicAlbum
  date published: 2021-09-10
album: 가장 유명한 월드뮤직 연주곡
  type: MusicAlbum
  date published: 2023-04-07
album: 가장 유명한 뮤지컬 연주곡 (Soundtrack)
  type: MusicAlbum
  date published: 2023-04-14
album: 가장 유명한 영화 OST 속 피아노 (Soundtrack)
  type: MusicAlbum
  date published: 2023-04-21
album: 가장 인기 있는 재즈 연주곡
  type: MusicAlbum
  date published: 2023-04-21
album: 아침의 여유를 주는 팝 연주곡
  type: MusicAlbum
  date published: 2023-04-28
album: 가장 인기 있는 뉴에이지 연주곡
  type: MusicAlbum
  date published: 2023-04-28
  track: Must Say Good Bye (From "시월애")
    type: MusicRecording
    duration: PT4M18S
    duration ms: 258920
    explicit: false
    by artist: 에이프릴 피아노
    in album: 가장 인기 있는 뉴에이지 연주곡
      type: MusicAlbum
      date published: 2023-04-28
    isrc code: KRRAR2326220
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T21:57:16+00:00
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Must Say Good Bye (From "시월애")
album: 피아노로 듣는 인기 영화음악 모음 (Soundtrack)
album: 잔잔한 카페 지브리 연주곡 모음 (Soundtrack)
album: 분위기 있는 카페 피아노 베스트
album: 조용한 카페에 흐르는 뉴에이지 피아노 BGM
album: 레트로 감성 영화음악 피아노 모음
album: 레트로 감성 뉴에이지 피아노 모음
album: 가장 인기 있는 뉴에이지 피아노 모음
album: 마음이 편안해지는 ASMR 힐링 클래식
album: 머리를 맑게하는 ASMR 내추럴 피아노

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x46192a22c4db5dff49e10454e0c11a6fb7ef2a21b4a39805bdda0c01079428c4

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956856

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956856

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRRAR2326220

OTSTimestamp
type: PropertyValue
value: 2026-07-06T01:25:57Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46192a22c4db5dff49e10454e0c11a6fb7ef2a21b4a39805bdda0c01079428c4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRRAR2326220.
date published: 2026-07-06T01:25:57Z

Must Say Good Bye (From "시월애")
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 132.014
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.817
additional property: Energy
  type: PropertyValue
  value: 0.046
additional property: Speechiness
  type: PropertyValue
  value: 0.089
additional property: Acousticness
  type: PropertyValue
  value: 0.991
additional property: Instrumentalness
  type: PropertyValue
  value: 0.971
additional property: Liveness
  type: PropertyValue
  value: 0.102
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.235
additional property: Loudness (dB)
  type: PropertyValue
  value: -23.957
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Major

피아노로 듣는 인기 영화음악 모음 (Soundtrack)
type: MusicAlbum
date published: 2023-05-12
track: The Whole Nine Yards (From "냉정과 열정 사이")
  type: MusicRecording
  duration: PT3M50S
  duration ms: 230885
  explicit: false
  by artist: 에이프릴 피아노
  in album: 피아노로 듣는 인기 영화음악 모음 (Soundtrack)
    type: MusicAlbum
    date published: 2023-05-12
  isrc code: KRRAR2326375
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T12:04:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8ba90d788049210e7b97b576acd663b749b1219e231d5b55629f41f670dd7b12
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958878
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958878
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRRAR2326375
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T12:32:15Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba90d788049210e7b97b576acd663b749b1219e231d5b55629f41f670dd7b12. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRRAR2326375.
    date published: 2026-07-20T12:32:15Z
  audio: The Whole Nine Yards (From "냉정과 열정 사이")
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.972
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.754
    additional property: Energy
      type: PropertyValue
      value: 0.123
    additional property: Speechiness
      type: PropertyValue
      value: 0.079
    additional property: Acousticness
      type: PropertyValue
      value: 0.995
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.971
    additional property: Liveness
      type: PropertyValue
      value: 0.096
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.27
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.778
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

잔잔한 카페 지브리 연주곡 모음 (Soundtrack)
type: MusicAlbum
date published: 2023-06-16

분위기 있는 카페 피아노 베스트
type: MusicAlbum
date published: 2023-06-30

조용한 카페에 흐르는 뉴에이지 피아노 BGM
type: MusicAlbum
date published: 2023-06-30

레트로 감성 영화음악 피아노 모음
type: MusicAlbum
date published: 2023-07-14

레트로 감성 뉴에이지 피아노 모음
type: MusicAlbum
date published: 2023-07-14

가장 인기 있는 뉴에이지 피아노 모음
type: MusicAlbum
date published: 2023-07-21

마음이 편안해지는 ASMR 힐링 클래식
type: MusicAlbum
date published: 2023-12-15

머리를 맑게하는 ASMR 내추럴 피아노
type: MusicAlbum
date published: 2023-12-15